#1B2BA0#1B2BA0

#1B2BA0 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.186 H 268.2°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B2BA0
RGB	rgb(27, 43, 160)
HSL	hsl(233, 71%, 37%)
HSV	hsv(233, 83%, 63%)
CMYK	cmyk(83.1%, 73.1%, 0%, 37.3%)
CIE-LAB	lab(25.25, 38.15, -64.18)
CIE-LCH	lch(25.25, 74.66, 300.73°)
OKLab	oklab(37.13% -0.0058 -0.186)
OKLCH	oklch(37.13% 0.186 268.2)
XYZ	xyz(7.6588, 4.4979, 33.7154)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2BA0 #A0901B

analogous

#1B6EA0 #1B2BA0 #4E1BA0

triadic

#1B2BA0 #A01B2B #2BA01B

tetradic

#1B2BA0 #A01B6E #A0901B #1BA04E

square

#1B2BA0 #A01B6E #A0901B #1BA04E

split-complementary

#1B2BA0 #A04E1B #6EA01B

monochromatic

#090F37 #121D6C #1B2BA0 #2439D4 #5365E2

Accessibility & contrast

On white

11.05

#1B2BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B2BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2BA0

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2BA0	#FFFFFF	#000000	##FFFFFF
##1B2BA0	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A3

Deuteranopia (green-blind)

#00359E

Tritanopia (blue-blind)

#004D63

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b2ba0;
/* rgb */ color: rgb(27, 43, 160);
/* oklch */ color: oklch(37.1% 0.186 268.2);

Tailwind

colors: {
  custom: {
    50: '#7265bd',
    500: '#1b2ba0',
    950: '#000000',
  },
}

SCSS

$custom: #1b2ba0;
$custom-light: #7265bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2ba0",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 160
  },
  "hsl": {
    "h": 232.782,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37128,
    "c": 0.18609,
    "h": 268.2
  },
  "luminance": 0.04499
}

Semantic roles & 50–950 ramp

primary

#1B2BA0

secondary

#C5B752

accent

#D83AEE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1B2BA0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →